ESR studies of n-alkane diols irradiated by γ-rays; Identification of radicals and mechanism of radical migration
作者： Yoshimasa Hama , Katsuhiko Hamanaka , Tsunehisa Horiuchi
DOI: 10.1016/0146-5724(79)90031-1
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摘要: Abstract Free radicals produced by γ-irradiation in n-alkane diol having different molecular chain length are investigated the ESR method. The dominant free CH2CHOH radical and CH2CHCH2 radical. complex conformation of is determined computer simulation. Mutual conversion between two heating illumination u.v. light observed, which can be written as CH 2 C H CH ⇄ Δ OH from to occurs through an intramolecular process apparent activation energy obtained for this 7 kcal/mol. Kinetics migration discussed on basis a potential model unpaired electron.
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Reactions of the ethyl radical I. Metathesis with unsaturated hydrocarbons Proceedings of The Royal Society A: Mathematical, Physical and Engineering Sciences. ,vol. 244, pp. 289- 296 ,(1958) , 10.1098/RSPA.1958.0042
Yasaku Wada, Mechanical Dispersions and Transition Phenomena in Semicrystalline Polymers Journal of the Physical Society of Japan. ,vol. 16, pp. 1226- 1234 ,(1961) , 10.1143/JPSJ.16.1226
Chonon Heller, Harden M. McConnell, Radiation Damage in Organic Crystals. II. Electron Spin Resonance of (CO2H)CH2CH(CO2H) in β-Succinic Acid Journal of Chemical Physics. ,vol. 32, pp. 1535- 1539 ,(1960) , 10.1063/1.1730955
D. C. Waterman, Malcolm Dole, Radiation chemistry of polyethylene. X. Kinetics of the conversion of alkyl to allyl free radicals The Journal of Physical Chemistry. ,vol. 74, pp. 1913- 1922 ,(1970) , 10.1021/J100704A015
S. Shimada, H. Kashiwabara, J. Sohma, ESR studies of the photodegradation of polyethylene containing trapped allylic free radicals Journal of Polymer Science Part A-2: Polymer Physics. ,vol. 8, pp. 1291- 1302 ,(1970) , 10.1002/POL.1970.160080804
M. H. J. Wijnen, E. W. R. Steacie, The Reaction of Ethyl Radicals with Deuterium The Journal of Chemical Physics. ,vol. 20, pp. 205- 207 ,(1952) , 10.1063/1.1700377
G. R. Hoey, D. J. Le Roy, THE MERCURY PHOTOSENSITIZED HYDROGENATION OF PROPYLENE AND THE ACTIVATION ENERGY OF THE REACTION C3H7+H2 = C3H8+H Canadian Journal of Chemistry. ,vol. 33, pp. 580- 588 ,(1955) , 10.1139/V55-069